How do I assemble the Leesa Foundation?

The Foundation consists of four outer rails held together by pins and a center rail that slides into place. No Allen wrench or power tools are needed. If you're unsure about how to set up your foundation, watch the video below or the attached assembly guide. If you need more help, give us a call or send us a message!


Did you order a California King Foundation? When you're placing your slats on the Foundation, you'll see a gap in the area covered by the slats. Don't worry! This spacing is necessary to support a California King-sized mattress. Simply pull the slats away from the head and foot of the bed so they meet in the middle.